2.23 How are iOS and Android similar? How are they different?
Answer: Similarities
• Both are based on existing kernels (Linux and Mac OS X).
• Both have architecture that uses software stacks.
• Both provide frameworks for developers. Differences
• iOS is closed-source, and Android is open-source.
• iOS applications are developed in Objective-C, Android in Java.
• Android uses a virtual machine, and iOS executes code natively.